Type DID604

Active chilled beam for heating and cooling, with 2-pipe or 4-pipe heat exchanger, for integration with various ceiling systems. The condensate drip tray is useful if the temperature temporarily falls below the dew point.

Preferably for room heights up to 4.00 m

High heating and cooling capacity with a low conditioned primary air volume flow rate and low sound power level

High comfort levels due to low airflow velocity in the occupied zone

Three nozzle variants to optimise induction based on demand

Removable induced air grille, fixed with magnets

Optional equipment and accessories

Control system

Adjustable air control blades for air direction control

Heat exchanger powder-coated black

Powder coating in many different colours, e.g. RAL CLASSIC

DID604/593×593/LE

Tested to VDI 6022

Application

Description

Application

Active chilled beams of Type DID604 for the integration into various ceiling systems, preferably for room heights up to 4.00 m

Particularly suitable for grid ceilings with grid size 600 or 625

The condensate drip tray is useful if the temperature temporarily falls below the dew point

Adjustable air control blades (optional) allow for the manual adjustment of the four-way air discharge

The primary air is discharged through nozzles into the mixing chamber; as a result of this, secondary air is induced. Secondary air (room air) is induced via the induced air grille and passes through the vertical heat exchanger, where it is heated or cooled.

Primary and secondary air mix and are then supplied to the room horizontally through the supply air slots.

Variants, Attachments, Dimensions and weight

Variants

Attachments

Dimensions and weight

DID604/593×593/LE

Set of air control blades

① Locking
② Blade
③ Coupling strip
④ Connection

Set of air control blades

If a high cooling capacity is required in a very small space with active chilled beams, optional air control blades allow for adjusting the air discharge pattern such that the acceptable air velocity in the occupied zone is not exceeded. The airflow of each active chilled beam is spread and discharged according to the room geometry. If the use of a room changes, the air discharge pattern can be optimised by adjusting the air control blades accordingly.

It is possible to adjust several air control blades (i.e. a set of air control blades) together

For fine adjustment, the sets of air control blades can be disconnected from complementary to one another

To adjust a set of air control blades, use both hands to move the two outer blades of the set as required

Maximum possible adjustment is 45° to the right or left in steps of 15°

The blades are factory set to straight air discharge

If the air discharge is not straight, the water-side capacity will be slightly affected. Blades set at 45° may cause a loss of up to 5 %. Air control blades have to be factory fitted; it is not possible to retrofit air control blades at a later stage.

Heat exchangers are fitted with water flow and water return connections at the narrow side

Installation into T-bar ceilings or continuous ceilings

To avoid too much load on the ceiling, the suspension points should be used

Schematic illustration of mixed flow ventilation

LN [mm]

Nominal length

LWA [dB(A)]

Sound power level

tPr [°C]

Primary air temperature

tWV [C°]

Water flow temperature – cooling/heating

tR [C°]

Room temperature

tR [C°]

Room temperature

tAN [C°]

Secondary air intake temperature

QPr [W]

Thermal output – primary air

Qtot [W]

Thermal output – total

QW [W]

Thermal output – water side, cooling/heating

VPr [l/s]

Primary air volume flow rate

VPr [m³/h]

Primary air volume flow rate

VW [l/h]

Water flow rate – cooling/heating

V [l/h]

Volume flow rate

∆tW [K]

Temperature difference – water

∆pW [kPa]

Pressure drop, water side

∆pt [Pa]

Total pressure drop, air side

∆tPr = tPr - tR [K]

Difference between primary air temperature and room temperature

∆tRWV = tWV - tR [K]

Difference between water flow temperature and room temperature

∆tWm-Ref [K]

Difference between mean water temperature and reference temperature

LN [mm]

Nominal length

Mixed flow

The supply air is discharged from the diffuser into the space with a velocity between 2 and 5 m/s. The resulting air jet mixes with the room air, ventilating the entire space. Mixed flow systems typically provide a uniform temperature distribution and air quality within the space. The originally high velocity of the turbulent air jet decreases rapidly due to the high induction levels of mixed flow systems.

Heat exchanger

The maximum water-side operating pressure for all heat exchangers is 6 bar.

The maximum water flow temperature (heating circuit) for all heat exchangers is 75 °C; if flexible hoses are used, the water flow temperature should not exceed 55 °C. Units for other pressures and temperatures are available on request.

The water flow temperature (cooling circuit) should be at least 16 °C such that it does not permanently fall below the dew point. For units with a condensate drip tray the water flow temperature may be reduced to 15 °C.

Heat exchanger as 2-pipe system

Air-water systems with a 2-pipe heat exchanger may be used for either heating or cooling. In changeover mode it is possible to use all units within a water circuit exclusively for cooling in summer and exclusively for heating in winter.

Heat exchanger as 4-pipe system

Air-water systems with a 4-pipe heat exchanger may be used for both heating and cooling. Depending on the season, i.e. especially in spring and autumn, it may be possible that an office has to be heated in the morning and cooled in the afternoon.

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Your message is send and will be processed shortly.Our department for Service-Requests will contact you asap.For general question regarding products or services you can also call:Tel.: +61 (02) 8923 2551